Alanyl Glutamine Impurity 2 CAS CATO-C4X-19742
| CAS No. | CATO-C4X-19742 |
| Molecular Formula | C8H13ClN2O4 |
| Molecular Weight | 236.65 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Alanyl Glutamine Impurity 2 (CAS CATO-C4X-19742, C8H13ClN2O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C8H13ClN2O4, Alanyl Glutamine Impurity 2 contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 236.65 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C8H13ClN2O4 |
| Molecular Weight | 236.65 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Alanyl Standards
- Alanyl Glutamine Impurity 1 (CAS 159141-33-0)
- Alanyl Glutamine Impurity 5 (CAS CATO-C4X-19745)
- Alanyl Glutamine Impurity 6 (CAS CATO-C4X-19746)
- DL-Alanyl-DL-phenylalanine (CAS 1999-45-7)
- Alanyl Glutamine Impurity 23 (CAS CATO-C4X-197423)
- Alanyl Glutamine Impurity 16 (CAS 672284-92-3)
- L-Alanyl-L-alanyl-L-alanine (CAS 5874-90-8)
- L-Alanyl-L-proline tert-Butyl Ester (CAS 29375-30-2)
Recommended Standards
- Lenvatinib Impurity 91 (CAS CATO-C4X-114091)
- Lenvatinib Impurity 79 (CAS CATO-C4X-114079)
- Trifluridine Impurity 4 (CAS 4449-28-9)
- Lenvatinib Impurity 20 (CAS 417721-36-9)
- Labetalol Impurity 32 (CAS 345933-79-1)
- Cefepime EP Impurity C (CAS 104301-63-5)
- Baloxavir Marboxil Impurity 226 (CAS CATO-C4X-2108226)
- (S)-2-(2,6-Dimethylphenyl)pyrrolidine (CAS 1213605-47-0)
- 2-((4-Bromophenyl)thio)-N-(4-fluoro-3-nitrophenyl)acetamide (CAS 380490-98-2)
- 3-Bromo-5-(diethoxymethyl)pyridine (CAS 2624417-40-7)
- n-(4-Chlorobenzyl)-2-methylbutan-2-amine (CAS 931991-06-9)
- rel-(Benzyl (3R,4R)-3-fluoro-4-hydroxypiperidine-1-carboxylate) (CAS 913574-96-6)
- 5-(tert-Butylthio)-4-methyl-2-(pyrrolidin-1-yl)pyridine (CAS 1355231-74-1)
- Semaglutide impurity 68 (CAS CATO-C4X-222668)
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